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Prototype HSWR22 Hambuilder HF SWR meter using 2.2 inch TFT
*. ATMega128 Microcontroller *. 2.2 Inch TFT LCD (ILI9341) *. 3x FT50-43 Toroid as directional coupler *. FWD, REF, SWR reading plus reflected coeficien, return loss(db) and match loss *. Adjusting…